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Cas 590-63-6 Bethanechol: Items Standard Result Appearance White crystalline or crystalline powder White crystalline or crystalline powder Identification Comply Qualified Residual solvents Ethanol ≤0.5% 0.26% Tapped density ...

Sodium Metabisulfite CAS 7681-57-4: Items Standard Appearance White or slightly yellowish crystalline powder Main content ( as Na2S2O5) % ≥96.5 Fe ，% ≤0.003 Heavy metals (as Pb) (mg/kg) ≤5.0 As/ （mg/kg） ≤1.0 Water-insoluble ...

O-Acetyl-L-carnitine Hydrochloride cas 5080-50-2: Items Standard Identification IR Appearance White Crystalline Powder Particle size Through 20 mesh Specific rotation -27.0~ -29.0° PH 2.3-2.6 Loss on drying 0.5% max Residue on ignition 0.5% ...

Kasugamycin Bactericide CAS 6980-18-3: Items Standard Appearance Light yellow or light gray powder, without clumping Content of Kasugamycin 4.0+-0.4% Water ≤3.0% PH 4-8 Suspensibility ≥ 80% Fineness (through a 45 micron ...

Cas 117-39-5 Quercetin: Items Standard Content （HPLC） Quercetin ≥95% Content (UV) Quercetin ≥98% Identification(USP43) Consistent with the infrared reference spectrum of quercetin Identification(USP43) λmax = 371 ...

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